21058506

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1723}}^1$

素因数の和:1835

約数の個数: 48

約数和(自身を含む): 52713024

約数和(自身を除く): 31654518

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 97, 126, 194, 291, 582, 679, 873, 1358, 1723, 1746, 2037, 3446, 4074, 5169, 6111, 10338, 12061, 12222, 15507, 24122, 31014, 36183, 72366, 108549, 167131, 217098, 334262, 501393, 1002786, 1169917, 1504179, 2339834, 3008358, 3509751, 7019502, 10529253, 21058506]

約数ペア:

[(1, 21058506), (2, 10529253), (3, 7019502), (6, 3509751), (7, 3008358), (9, 2339834), (14, 1504179), (18, 1169917), (21, 1002786), (42, 501393), (63, 334262), (97, 217098), (126, 167131), (194, 108549), (291, 72366), (582, 36183), (679, 31014), (873, 24122), (1358, 15507), (1723, 12222), (1746, 12061), (2037, 10338), (3446, 6111), (4074, 5169)]